Connecting assembly of commodity shelf and commodity shelf
By designing the rack connection components connecting sleeves, limiting devices and locking devices, the problems of insufficient load bearing and inconvenient adjustment of traditional racks are solved, high load-bearing capacity and convenient adjustment are achieved, and the user experience is significantly improved.
Patent Information
- Application Number
- CN202420393576.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-03-01
AI Technical Summary
Traditional storage racks have insufficient load-bearing capacity, troublesome installation, and inconvenient adjustment, which affects the user experience.
A rack connecting assembly including a connecting sleeve, a limiting device and a locking device is designed, and the connecting sleeve is arranged on a support rod and locked and fixed by a locking device to provide a support structure that is easy to adjust. , the limiting device prevents the tray from rotating, enhancing stability and safety.
It realizes the high load-bearing capacity and convenient adjustment of the shelf, improves the user experience, and enhances the stability and safety of the shelf.
Smart Images

Figure CN222323133U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of storage racks, in particular to a connection assembly of storage racks and the storage rack. Background Art
[0002] With the development of the times, people's living conditions are getting better and better, and people's daily necessities in their homes are becoming more and more abundant and diverse. Therefore, a simple, generous and cleverly designed shelf has become a necessity for people to sort and organize these items. The shelf can not only effectively help people classify and place daily necessities, but also make it easy to take and put items, saving the trouble of searching.
[0003] However, traditional storage racks may have some problems, such as insufficient load-bearing capacity, troublesome installation, inconvenient adjustment, etc., which will affect our use experience. Therefore, there is an urgent need to provide a storage rack with strong load-bearing capacity and easy adjustment in the market to improve the user experience. Summary of the invention
[0004] In order to overcome the deficiencies of the prior art, the utility model provides a connection assembly of a storage rack and a storage rack, which can be used by users to classify and place daily necessities and have the characteristics of strong load-bearing capacity and easy adjustment.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] The utility model provides a connection assembly of a storage rack, comprising:
[0007] A connecting sleeve, the connecting sleeve is used to be sleeved on the support rod;
[0008] A limiting device, the limiting device is arranged on the connecting sleeve, and the limiting device is used to prevent the storage tray from rotating circumferentially around the support rod;
[0009] A locking device is used to lock the connecting sleeve onto the support rod.
[0010] As an improvement of the present utility model, the locking device includes a first connecting member and a second connecting member, the first connecting member is arranged on the connecting sleeve, and the first connecting member is connected to the second connecting member so that the connecting sleeve is locked on the support rod.
[0011] As an improvement of the present invention, the first connecting member and the second connecting member are detachably connected.
[0012] As an improvement of the present utility model, the connecting sleeve is a "U"-shaped hollow sleeve, the connecting sleeve having a first side end, a second side end and a first side opening, the first connecting member includes a first clamp arm and a second clamp arm, the first clamp arm is connected to the first side end, the second clamp arm is connected to the second side end, the second connecting member includes a fixing cap, the fixing cap is connected to the first clamp arm and the second clamp arm so that the connecting sleeve is radially gathered inward and pressed tightly against the support rod.
[0013] As an improvement of the present invention, the outer surfaces of the first clamp arm and the second clamp arm are provided with an external thread structure, and the fixing cap is provided with an internal thread structure. The fixing cap is connected to the first clamp arm and the second clamp arm through threaded cooperation, and when the fixing cap is rotated and wrapped around the first clamp arm and the second clamp arm, the first clamp arm and the second clamp arm drive the connecting sleeve to gather radially inward and press tightly against the support rod.
[0014] As an improvement of the present invention, the first clamping arm and the second clamping arm are arc-shaped.
[0015] As an improvement of the present invention, the limiting device includes a clamping piece fixedly connected to the upper end surface of the connecting sleeve, and the clamping piece is used to cooperate with the clamping groove of the storage tray to limit the circumferential rotation of the storage tray around the support rod.
[0016] As an improvement of the present invention, the clamping piece is an approximately semicircular arc-shaped piece, the thickness of the clamping piece is smaller than the thickness of the connecting sleeve, and when the clamping piece is engaged with the slot, the bottom surface of the storage tray abuts against the upper end surface of the connecting sleeve.
[0017] As an improvement of the utility model, the inner wall of the connecting sleeve is also fixedly connected with a first push rod and a second push rod, the first push rod and the second push rod are respectively arranged on the opposite side walls of the connecting sleeve, and the first push rod extends to the inner wall of the first clamp arm, and the second push rod extends to the inner wall of the second clamp arm.
[0018] As an improvement of the utility model, a plurality of anti-slip convex strips are provided on the outer surface of the fixing cap.
[0019] The utility model also provides a storage rack, comprising a support rod, a storage tray and a connecting assembly, wherein the connecting assembly comprises:
[0020] A connecting sleeve, the connecting sleeve is used to be sleeved on the supporting rod;
[0021] A limiting device, the limiting device is arranged on the connecting sleeve, and the limiting device is used to prevent the storage tray from rotating circumferentially around the support rod;
[0022] A locking device is used to lock the connecting sleeve onto the support rod.
[0023] As an improvement of the present utility model, the locking device includes a first connecting member and a second connecting member, the first connecting member is arranged on the connecting sleeve, and the first connecting member is connected to the second connecting member so that the connecting sleeve is locked on the support rod.
[0024] As an improvement of the present invention, the first connecting member and the second connecting member are detachably connected.
[0025] As an improvement of the present utility model, the connecting sleeve is a "U"-shaped hollow sleeve, the connecting sleeve having a first side end, a second side end and a first side opening, the first connecting member includes a first clamp arm and a second clamp arm, the first clamp arm is connected to the first side end, the second clamp arm is connected to the second side end, the second connecting member includes a fixing cap, the fixing cap is connected to the first clamp arm and the second clamp arm so that the connecting sleeve is radially gathered inward and pressed tightly against the support rod.
[0026] As an improvement of the present invention, the outer surfaces of the first clamp arm and the second clamp arm are both provided with an external thread structure, and the fixing cap is provided with an internal thread structure. The fixing cap is connected to the first clamp arm and the second clamp arm through threaded cooperation, and when the fixing cap is wrapped around the first clamp arm and the second clamp arm relative to the connecting sleeve, the first clamp arm and the second clamp arm drive the connecting sleeve to gather radially inward and press tightly against the support rod.
[0027] As an improvement of the present invention, the first clamping arm and the second clamping arm are arc-shaped.
[0028] As an improvement of the present invention, the limiting device includes a clamping piece fixedly connected to the upper end surface of the connecting sleeve, the storage tray has a through hole and a clamping slot, the through hole is connected to the clamping slot, the storage tray is sleeved on the support rod through the through hole and the clamping piece is engaged with the clamping slot to limit the circumferential rotation of the storage tray around the support rod.
[0029] As an improvement of the present invention, the clamping piece is an approximately semicircular arc-shaped piece, the thickness of the clamping piece is smaller than the thickness of the connecting sleeve, and when the clamping piece is engaged with the slot, the bottom surface of the storage tray abuts against the upper end surface of the connecting sleeve.
[0030] As an improvement of the utility model, the inner wall of the connecting sleeve is also fixedly connected with a first push rod and a second push rod, the first push rod and the second push rod are respectively arranged on the opposite side walls of the connecting sleeve, and the first push rod extends to the inner wall of the first clamp arm, and the second push rod extends to the inner wall of the second clamp arm.
[0031] As an improvement of the utility model, a plurality of anti-slip convex strips are provided on the outer surface of the fixing cap.
[0032] The beneficial effects of the utility model are as follows: the utility model provides a connection assembly of a storage rack, including a connection sleeve, the connection sleeve is used to be sleeved on a support rod; a limit device, the limit device is arranged on the connection sleeve, the limit device is used to prevent the storage tray from rotating circumferentially around the support rod; a locking device, the locking device is used to lock the connection sleeve on the support rod. Through the above structure, the connection sleeve is sleeved on the support rod, and it is locked and fixed on the support rod by the locking device. At this time, the connection sleeve plays the role of supporting the storage tray sleeved on the support rod. The user can appropriately adjust the locking position of the connection sleeve on the support rod according to the actual situation, so as to facilitate the adjustment of the upper and lower positions of the storage tray. In addition, since there is a limit device on the connection sleeve, the storage tray can be limited from shaking left and right, thereby enhancing the stability and safety of the storage rack and greatly improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0034] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0036] Figure 2 It is a cross-sectional view of the utility model;
[0037] Figure 3 yes Figure 2 A magnified view of point A;
[0038] Figure 4 It is an exploded view of the utility model;
[0039] Figure 5 It is a schematic diagram of the locking device of the utility model; DETAILED DESCRIPTION
[0040] refer to Figures 1 to 5 A connection assembly of a storage rack includes a connection sleeve 1, which is used to be sleeved on a support rod 10; a limit device 2, which is provided on the connection sleeve 1, and is used to prevent a storage tray 20 from rotating circumferentially around the support rod 10; and a locking device 3, which is used to lock the connection sleeve 1 on the support rod 10. Through the above structure, the connection sleeve 1 is sleeved on the support rod 10, and is locked and fixed on the support rod 10 by the locking device 3. At this time, the connection sleeve 1 plays a role in supporting and carrying the storage tray 20 sleeved on the support rod 10. The user can appropriately adjust the locking position of the connection sleeve 1 on the support rod 10 according to actual conditions, so as to facilitate the adjustment of the upper and lower positions of the storage tray 20. In addition, since the limit device 2 is provided on the connection sleeve 1, the storage tray 20 can be limited from shaking left and right, thereby enhancing the stability and safety of the storage rack and greatly improving the user experience.
[0041] In this embodiment, the locking device 3 includes a first connecting member 31 and a second connecting member 32. The first connecting member 31 is provided on the connecting sleeve 1, and the first connecting member 31 and the second connecting member 32 are connected to lock the connecting sleeve 1 on the support rod 10. Specifically, the first connecting member 31 and the second connecting member 32 are detachably connected.
[0042] Specifically, the connecting sleeve 1 is a "U"-shaped hollow sleeve, and the connecting sleeve 1 has a first side end 11, a second side end 12 and a first side opening 13. The first connecting member 31 includes a first clamping arm 311 and a second clamping arm 312. The first clamping arm 311 is connected to the first side end 11, and the second clamping arm 312 is connected to the second side end 12. The second connecting member 32 includes a fixing cap 321, and the fixing cap 321 is connected to the first clamping arm 311 and the second clamping arm 312 so that the connecting sleeve 1 is radially gathered inward and pressed tightly against the support rod 10. With the above structure, when the user uses it, the support rod 10 can be squeezed into the connecting sleeve 1 through the first side opening 13, and then the fixing cap 321 can be sleeved on the outer wall of the first clamping arm 311 and the second clamping arm 312. When the fixing cap 321 is squeezed inwardly along the clamping arm and approaches the connecting sleeve 1, the first side end 11 and the second side end 12 of the connecting sleeve 1 are close to each other under the action of the rubber and plastic properties, generating an inward squeezing force, thereby locking the connecting sleeve 1 on the support rod 10, and then achieving the function of bearing and abutting the storage tray 20, thereby enhancing the supporting bearing capacity of the storage rack. In addition, since the first connecting member 31 and the second connecting member 32 are detachably connected, it is convenient for the user to adjust the position of the connecting sleeve 1 on the support rod 10 at any time, and adjust the distance between the storage trays 20, so that the user can adjust it according to the height or aesthetics of the placed items, thereby greatly improving the user experience.
[0043] Further, the outer surfaces of the first clamp arm 311 and the second clamp arm 312 are both provided with an external thread structure, and the fixing cap 321 is provided with an internal thread structure. The fixing cap 321 is connected with the first clamp arm 311 and the second clamp arm 312 through threaded matching, and when the fixing cap 321 is rotated and wound into the first clamp arm 311 and the second clamp arm 312, the first clamp arm 311 and the second clamp arm 312 drive the connecting sleeve 1 to gather radially inward and press against the support rod 10. Preferably, the first clamp arm 311 and the second clamp arm 312 are arc-shaped. Through the above structure, the fixing cap 321 and the first clamp arm 311 and the second clamp arm 312 are adjusted through threads. As the fixing cap 321 is screwed inward into the clamp arm, the inward extrusion force of the connecting sleeve 1 is enhanced, and then it is firmly locked on the support rod 10, and the installation process is simple, and it is convenient and quick to use.
[0044] In this embodiment, the limiting device 2 includes a clamping member 21 fixedly connected to the upper end surface of the connecting sleeve 1, and the clamping member 21 is used to engage with the clamping slot 201 of the storage tray 20 to limit the storage tray 20 from rotating circumferentially around the support rod 10. Preferably, the clamping member 21 is an arc-shaped piece that is approximately semicircular, and the thickness of the clamping member 21 is less than the thickness of the connecting sleeve 1. When the clamping member 21 engages with the clamping slot 201, the bottom surface of the storage tray 20 abuts against the upper end surface of the connecting sleeve 1. Through the above structure, after the connecting sleeve 1 is locked and fixed on the support rod 10, the storage tray 20 can be inserted into the support rod 10, and the direction of the card slot 201 is aligned with the card connector 21, and the card slot 201 can be engaged. Here, the size of the card slot 201 is basically consistent with the card connector 21, so that the storage tray 20 cannot rotate left and right under the restriction of the card connector 21, thereby strengthening the stability of the storage tray. The design structure is simple and easy to install, taking into account the needs and convenience of users and improving the user experience.
[0045] In this embodiment, the inner wall of the connecting sleeve 1 is also fixedly connected with a first push rod 14 and a second push rod 15, which are respectively arranged on the opposite side walls of the connecting sleeve 1, and the first push rod 14 extends to the inner wall of the first clamp arm 311, and the second push rod 15 extends to the inner wall of the second clamp arm 312. With the above structure, when the connecting sleeve 1 is locked and fixed to the support rod 10, since the diameter of the support rod 10 is smaller than the inner diameter of the connecting sleeve 1, the first push rod 14 and the second push rod 15 play a role of tightening, so that the connecting sleeve 1 can be more firmly locked on the support rod 10, thereby enhancing the supporting force of the storage rack and improving stability.
[0046] In this embodiment, the outer surface of the fixing cap 321 is provided with a plurality of anti-skid convex strips 322. Through the above structure, the gripping force of the fixing cap 321 is improved, making it more convenient for the user to install or remove, and increasing the safety and stability during use.
[0047] refer to Figures 1 to 5 A storage rack includes a support rod 10, a storage tray 20 and a connecting assembly, wherein the connecting assembly includes a connecting sleeve 1, the connecting sleeve 1 is used to be sleeved on the support rod 10; a limiting device 2, the limiting device 2 is arranged on the connecting sleeve 1, and the limiting device 2 is used to prevent the storage tray 20 from rotating around the support rod 10; and a locking device 3, the locking device 3 is used to lock the connecting sleeve 1 on the support rod 10. Through the above structure, the connecting sleeve 1 is sleeved on the support rod 10, and is locked and fixed on the support rod 10 by the locking device 3. At this time, the connecting sleeve 1 plays a role in supporting and carrying the storage tray 20 sleeved on the support rod 10. The user can appropriately adjust the locking position of the connecting sleeve 1 on the support rod 10 according to the actual situation, so as to facilitate the adjustment of the upper and lower positions of the storage tray 20, and because the limiting device 2 is provided on the connecting sleeve 1, the storage tray 20 can be limited from shaking left and right, thereby enhancing the stability and safety of the storage rack, and greatly improving the user experience.
[0048] In this embodiment, the locking device 3 includes a first connecting member 31 and a second connecting member 32. The first connecting member 31 is provided on the connecting sleeve 1, and the first connecting member 31 and the second connecting member 32 are connected to lock the connecting sleeve 1 on the support rod 10. Specifically, the first connecting member 31 and the second connecting member 32 are detachably connected.
[0049] Specifically, the connecting sleeve 1 is a "U"-shaped hollow sleeve, and the connecting sleeve 1 has a first side end 11, a second side end 12 and a first side opening 13. The first connecting member 31 includes a first clamping arm 311 and a second clamping arm 312. The first clamping arm 311 is connected to the first side end 11, and the second clamping arm 312 is connected to the second side end 12. The second connecting member 32 includes a fixing cap 321, and the fixing cap 321 is connected to the first clamping arm 311 and the second clamping arm 312 so that the connecting sleeve 1 is radially gathered inward and pressed tightly against the support rod 10. With the above structure, when the user uses it, the support rod 10 can be squeezed into the connecting sleeve 1 through the first side opening 13, and then the fixing cap 321 can be sleeved on the outer wall of the first clamping arm 311 and the second clamping arm 312. When the fixing cap 321 is squeezed inwardly along the clamping arm and approaches the connecting sleeve 1, the first side end 11 and the second side end 12 of the connecting sleeve 1 are close to each other under the action of the rubber and plastic properties, generating an inward squeezing force, thereby locking the connecting sleeve 1 on the support rod 10, and then achieving the function of bearing and abutting the storage tray 20, thereby enhancing the supporting bearing capacity of the storage rack. In addition, since the first connecting member 31 and the second connecting member 32 are detachably connected, it is convenient for the user to adjust the position of the connecting sleeve 1 on the support rod 10 at any time, and adjust the distance between the storage trays 20, so that the user can adjust it according to the height or aesthetics of the placed items, thereby greatly improving the user experience.
[0050] Further, the outer surfaces of the first clamp arm 311 and the second clamp arm 312 are both provided with an external thread structure, and the fixing cap 321 is provided with an internal thread structure. The fixing cap 321 is connected with the first clamp arm 311 and the second clamp arm 312 through threaded matching, and when the fixing cap 321 is rotated and wound into the first clamp arm 311 and the second clamp arm 312, the first clamp arm 311 and the second clamp arm 312 drive the connecting sleeve 1 to gather radially inward and press against the support rod 10. Preferably, the first clamp arm 311 and the second clamp arm 312 are arc-shaped. Through the above structure, the fixing cap 321 and the first clamp arm 311 and the second clamp arm 312 are adjusted through threads. As the fixing cap 321 is screwed inward into the clamp arm, the inward extrusion force of the connecting sleeve 1 is enhanced, and then it is firmly locked on the support rod 10, and the installation process is simple, and it is convenient and quick to use.
[0051] In this embodiment, the limiting device 2 includes a clamping member 21 fixedly connected to the upper end surface of the connecting sleeve 1, and the storage tray 20 has a through hole 202 and a clamping slot 201, and the through hole 202 is connected to the clamping slot 201. The storage tray 20 is sleeved on the support rod 10 through the through hole 202, and the clamping member 21 is engaged with the clamping slot 201 to limit the storage tray 20 from rotating circumferentially around the support rod 10. Preferably, the clamping member 21 is an arc-shaped piece that is approximately semicircular, and the thickness of the clamping member 21 is less than the thickness of the connecting sleeve 1. When the clamping member 21 is engaged with the clamping slot 201, the bottom surface of the storage tray 20 abuts against the upper end surface of the connecting sleeve 1. Through the above structure, after the connecting sleeve 1 is locked and fixed on the support rod 10, the storage tray 20 can be inserted into the support rod 10, and the direction of the card slot 201 is aligned with the card connector 21, and the card slot 201 can be engaged. Here, the size of the card slot 201 is basically consistent with the card connector 21, so that the storage tray 20 cannot rotate left and right under the restriction of the card connector 21, thereby strengthening the stability of the storage tray. The design structure is simple and easy to install, taking into account the needs and convenience of users and improving the user experience.
[0052] In this embodiment, the inner wall of the connecting sleeve 1 is also fixedly connected with a first push rod 14 and a second push rod 15, which are respectively arranged on the opposite side walls of the connecting sleeve 1, and the first push rod 14 extends to the inner wall of the first clamp arm 311, and the second push rod 15 extends to the inner wall of the second clamp arm 312. With the above structure, when the connecting sleeve 1 is locked and fixed to the support rod 10, since the diameter of the support rod 10 is smaller than the inner diameter of the connecting sleeve 1, the first push rod 14 and the second push rod 15 play a role of tightening, so that the connecting sleeve 1 can be more firmly locked on the support rod 10, thereby enhancing the supporting force of the storage rack and improving stability.
[0053] In this embodiment, the outer surface of the fixing cap 321 is provided with a plurality of anti-skid convex strips 322. Through the above structure, the gripping force of the fixing cap 321 is improved, making it more convenient for the user to install or remove, and increasing the safety and stability during use.
[0054] The above are one or more implementation methods provided in combination with specific content, and it is not intended that the specific implementation of the utility model is limited to these descriptions. Any method, structure, etc. similar to or identical to the method, structure, etc. of the utility model, or any technical deduction or replacement based on the concept of the utility model, shall be deemed to be within the protection scope of the utility model.
Claims
1. A connection assembly for a storage rack, characterized in that: include: A connecting sleeve (1), the connecting sleeve (1) being used for being sleeved on the supporting rod (10); A limiting device (2), the limiting device (2) being arranged on the connecting sleeve (1), the limiting device (2) being used to prevent the storage tray (20) from rotating circumferentially around the support rod (10); A locking device (3), wherein the locking device (3) is used to lock the connecting sleeve (1) onto the supporting rod (10).
2. The connection assembly of a storage rack according to claim 1, characterized in that: The locking device (3) comprises a first connecting member (31) and a second connecting member (32); the first connecting member (31) is arranged on the connecting sleeve (1); the first connecting member (31) is connected to the second connecting member (32) so that the connecting sleeve (1) is locked on the support rod (10).
3. The connection assembly of a storage rack according to claim 2, characterized in that: The first connecting member (31) and the second connecting member (32) are detachably connected.
4. The connection assembly of a storage rack according to claim 2, characterized in that: The connecting sleeve (1) is a "U"-shaped hollow sleeve, and has a first side end (11), a second side end (12) and a first side opening (13). The first connecting member (31) comprises a first clamping arm (311) and a second clamping arm (312). The first clamping arm (311) is connected to the first side end (11), and the second clamping arm (312) is connected to the second side end (12). The second connecting member (32) comprises a fixing cap (321), and the fixing cap (321) is connected to the first clamping arm (311) and the second clamping arm (312) so that the connecting sleeve (1) is radially gathered inward and pressed against the support rod (10).
5. The connection assembly of a storage rack according to claim 4, characterized in that: The outer surfaces of the first clamp arm (311) and the second clamp arm (312) are both provided with an external thread structure, and the fixing cap (321) is provided with an internal thread structure. The fixing cap (321) is connected to the first clamp arm (311) and the second clamp arm (312) through threaded matching, and when the fixing cap (321) is rotated and wound into the first clamp arm (311) and the second clamp arm (312), the first clamp arm (311) and the second clamp arm (312) drive the connecting sleeve (1) to gather radially inward and press against the support rod (10).
6. The connection assembly of the storage rack according to claim 5, characterized in that: The first clamping arm (311) and the second clamping arm (312) are arc-shaped.
7. The connection assembly of a storage rack according to claim 2, characterized in that: The limiting device (2) comprises a clamping piece (21) fixedly connected to the upper end surface of the connecting sleeve (1), and the clamping piece (21) is used to engage with a clamping groove (201) of the storage tray (20) to limit the storage tray (20) from rotating in a circumferential direction around the support rod (10).
8. The connection assembly of the storage rack according to claim 7, characterized in that: The clamping piece (21) is an approximately semicircular arc-shaped piece, the thickness of the clamping piece (21) is less than the thickness of the connecting sleeve (1), and when the clamping piece (21) is engaged with the clamping groove (201), the bottom surface of the storage tray (20) abuts against the upper end surface of the connecting sleeve (1).
9. The connection assembly of a storage rack according to claim 4, characterized in that: The inner wall of the connecting sleeve (1) is also fixedly connected with a first push rod (14) and a second push rod (15); the first push rod (14) and the second push rod (15) are respectively arranged on two opposite side walls of the connecting sleeve (1), and the first push rod (14) extends to the inner wall of the first clamping arm (311), and the second push rod (15) extends to the inner wall of the second clamping arm (312); the outer surface of the fixing cap (321) is provided with a plurality of anti-slip convex strips (322).
10. A storage rack, characterized in that: It comprises a support rod (10), a storage tray (20) and a connecting assembly according to any one of claims 1 to 9.